Multiflora Rose

Rosa Multiflora

General information

Rosa multiflora
The Multiflora Rose is a medium height, thorny, bushy shrub that has a height of 3-5 m. Each leaf is born alternately on stems and divided into 5-11 leaflets. The Multiflora Rose has clusters of numerous, white flowers that blossom in late spring. http://en.wikipedia.org/wiki/Multiflora_rose

http://www.dnr.state.wi.us/invasives/fact/rose.htm The Multiflora Rose is a dense spreading shrub with wide arching canes and stiff curved thorns.
They bloom in the late spring with numerous white flowers that form panicle.
Where it grows in dense thickets, it replaces the surrounding vegetation.

The Multiflora Rose is naturilized in most northeastern and midwestern part of the United States. These plants are found in old fields, pastures, roadsides, and forests; it could live in a wide range of soil and environmental conditions.
Multiflora Rose invades prairies, savannas, open woodlands, and forest edges; it may also occur in dense forests.

The Multiflora Rose is extremely prolific and can form impenetrable thickets that exclude native plant species. These plants/shrubs are very competitive for soil nutrients and they could lower crop yields in adjacent fields.
In the inner cities, most exotic species that are weedy are invasive and can tolerate urban conditions. Some species of human-introduced "landscape"

There are a few ways for the Multiflora Rose to be destroyed; mechanical control, chemical control and biological control.
For mechanical control, mowing or cutting with heavy equipment is proven effective. Chemically, herbicides on freshly cut stems is proven effective to destroy the root system of the plant. http://www.dnr.state.wi.us/invasives/fact/rose.htm Biological control shows that the Multiflora Rose is vulnerable to defoliation by Japanese beetles